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The infantrymen's personal weapon will be changed significantly. Today the Ministry of Defense has signed a contract with Colt Canada. By the end of 2009 all the Diemacos will receive an aimpoint, forward handgrip and adjustable buttstock along with other improvements. All the Diemacos will be fitted with a RIS on which various modules can be fitted based on operational requirements.

I'm looking to these pictures, and a few questions came up: I noticed that the RIS isn't a removeble unit (like for example the RIS in service with other army's), but it's one solid part with the upper receiver! I can understand why; All the sight mounted in the front and the back, are one with the barrel. So it increases the accuracy. My question; how do you remove (replace) the barrel? With conventionel AR15's/ Diemaco's. the barrel ock nut is under the ring that holds the handguards or RIS in place. And how can you mount the 40mm grenade launcher when that ring isn't around? New adaptors or something?

I'm looking to these pictures, and a few questions came up: I noticed that the RIS isn't a removeble unit (like for example the RIS in service with other army's), but it's one solid part with the upper receiver! I can understand why; All the sight mounted in the front and the back, are one with the barrel. So it increases the accuracy. My question; how do you remove (replace) the barrel? With conventionel AR15's/ Diemaco's. the barrel ock nut is under the ring that holds the handguards or RIS in place. And how can you mount the 40mm grenade launcher when that ring isn't around? New adaptors or something?

The barrel IS allready freeflaoting, because the handguard/ RIS is one with the upper receiver. It's molded in one piece, instead of an normal upper, and attaching a RIS-handguard on it. The issued Dutch AG36 40mm with his Diemaco adaptor won't fit anymore. It looks that the side parts of the handguard can be removed. Is this also the way to remove the barrel with new special tools?

Look between the case ejection hole (hulzengat...) and the notch before the frontgrip starts. There is a slim erea between the upperreceiver and the handguard. That's where normaly the standart upper will stop, and where the threath for the barrel lock nut will be screwed on. There is normaly also the ring that keeps the handguard in place.
It looks that the handguard and upper are one piece (molded in one piece= new disigned upperreceivers). This will be great, because there is no movement between the upperreceiver, and the sights.

The barrel IS allready freeflaoting, because the handguard/ RIS is one with the upper receiver. It's molded in one piece, instead of an normal upper, and attaching a RIS-handguard on it. The issued Dutch AG36 40mm with his Diemaco adaptor won't fit anymore. It looks that the side parts of the handguard can be removed. Is this also the way to remove the barrel with new special tools?

Re: AG36
The latest version of the AG36 is the AG-C / EGLM (Enhanced Grenade Launcher Module), a modification which can be mounted using Picatinny type rails.

Question; Why would you want to remove the barrel? if this becomes neccesary it wil be done in the armoury.

Question; Why would you want to remove the barrel? if this becomes neccesary it wil be done in the armoury.

Oh, it's nothing a soldier has to do. But I own a Bushmaster AR15 (I'm a target shooter) and I replaced mu barrel a few times (removed the standart barrel, and placed a heavy match barrel with a other barreltwist due to the bullets I use), that's why I'm curious how you will remove the barrel from that upper.